detailed information: The input equation set is: Question solving process:
Divide the two sides of equation (1) by 1020, the equation can be obtained: , then subtract both sides of equation (4) from both sides of equation (3), the equations are reduced to:
Divide the two sides of equation (2) by 1330, the equation can be obtained: , then subtract both sides of equation (5) from both sides of equation (3), the equations are reduced to:
| | | | | - | 501 266 | z | = | | - | 337 22610 | | (3) |
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Multiply both sides of equation (3) by 45220 Divide both sides of equation (3) by 167, get the equation: | - | 85170 167 | z | = | | - | 674 167 | (6) | , then add the two sides of equation (6) to both sides of equation (2), get the equation:
| | | | | - | 501 266 | z | = | | - | 337 22610 | | (3) |
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Multiply both sides of equation (3) by 45220 Divide both sides of equation (3) by 167, get the equation: | - | 85170 167 | z | = | | - | 674 167 | (7) | , then add the two sides of equation (7) to both sides of equation (1), get the equation:
| | | | | - | 501 266 | z | = | | - | 337 22610 | | (3) |
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The coefficient of the unknown number is reduced to 1, and the equations are reduced to:
Therefore, the solution of the equation set is:
Convert the solution of the equation set to decimals:
解方程组的详细方法请参阅:《多元一次方程组的解法》 |